Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 30

Waxing Gibbous 82%

12:08

05:07

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
19 Bad
20 Bad
21 OK
22 OK
23 Bad
00 Bad
01 OK
02 OK
03 OK
04 OK
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good

Sun - Rise: 08:13, Set: 15:52, Transit: 12:02. Moon - Rise: 12:08, Set: 05:07. Civil Dark: 16:34 - 07:31. Nautical Dark: 17:19 - 06:46. Astro Dark: 18:01 - 06:04

Total Clouds (% Sky Obscured)

93
86
67
90
72
35
36
43
96
54
18
43
60
64
47
41
13
15
0
0
0
1
1
2

Low Clouds (% Sky Obscured)

49
4
67
47
53
0
36
43
96
54
18
43
60
62
44
34
5
6
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

2
2
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
15
14
3
3
1
2
2
3
2
2
1
1
1
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
7
8
9
8
7
7
7
8
8
8
8
8
8
8
8
8
8
7
7
7
7
7

Chance of Frost

Temperature (°C)

5
6
6
6
5
5
4
3
3
3
3
2
2
2
3
3
2
2
2
0
0
0
0
1

Feels Like (°C)

1
2
2
2
2
1
0
1
1
0
0
0
-1
-1
-1
-2
-2
-2
-3
-2
-3
-3
-2
-1

Dew Point (°C)

-1
0
1
1
1
1
1
0
-0
0
1
0
-0
-0
0
1
1
0
-1
-1
-2
-2
-2
-2

Relative Humidity (%)

67
68
70
71
74
75
80
83
82
85
86
86
86
88
85
86
89
88
84
89
86
86
84
80

Pressure (mb)

1035
1035
1035
1035
1035
1035
1035
1034
1034
1034
1034
1034
1034
1034
1033
1033
1033
1032
1031
1031
1031
1031
1030
1030

Ozone (du)

310
309
311
312
312
312
311
310
310
309
307
308
309
308
306
306
308
309
308
309
306
305
305
304

Wednesday 31

Waxing Gibbous 91%

12:33

06:39

11 Good
12 Good
13 OK
14 OK
15 OK
16 Bad
17 OK
18 OK
19 OK
20 OK
21 Good
22 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:13, Set: 15:53, Transit: 12:03. Moon - Rise: 12:33, Set: 06:39. Civil Dark: 16:35 - 07:31. Nautical Dark: 17:20 - 06:46. Astro Dark: 18:02 - 06:04

Total Clouds (% Sky Obscured)

0
10
31
37
41
50
27
12
17
24
11
14
7
47
58
75
100
100
97
96
99
87
66
68

Low Clouds (% Sky Obscured)

0
0
0
7
22
17
12
10
17
4
0
4
0
31
45
34
77
41
39
52
51
50
42
15

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
30
16
55
54
52
1
1
0
0

High Clouds (% Sky Obscured)

0
7
18
37
40
50
14
2
2
16
8
8
3
26
40
27
100
100
87
89
53
82
66
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
7
25
45
15

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0

Wind Speed/Direction (mph)

9
10
10
10
10
10
11
12
12
12
12
13
13
13
14
15
16
17
18
18
18
18
18
17

Chance of Frost

Temperature (°C)

2
3
4
4
4
3
2
2
2
2
1
1
1
1
2
3
3
2
2
2
2
3
3
3

Feels Like (°C)

-0
1
1
1
-0
-1
-3
-2
-2
-2
-3
-3
-3
-4
-4
-3
-3
-4
-4
-5
-5
-4
-4
-3

Dew Point (°C)

-2
-1
1
1
1
0
0
0
0
-0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-0
2

Relative Humidity (%)

74
75
79
80
83
85
88
88
88
88
86
88
88
91
86
76
77
79
79
79
80
77
79
93

Pressure (mb)

1029
1028
1027
1026
1025
1025
1024
1023
1023
1022
1021
1020
1019
1018
1017
1016
1015
1013
1012
1010
1010
1009
1009
1009

Ozone (du)

308
309
310
308
304
299
300
299
297
295
296
297
299
299
296
294
290
292
295
302
311
315
322
339

Thursday 1

Waxing Gibbous 97%

13:13

07:57

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 Bad
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 OK
02 Good
03 Good
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 08:12, Set: 15:54, Transit: 12:03. Moon - Rise: 13:13, Set: 07:57. Civil Dark: 16:36 - 07:31. Nautical Dark: 17:20 - 06:46. Astro Dark: 18:03 - 06:04

Total Clouds (% Sky Obscured)

100
93
86
82
58
30
50
30
30
63
91
99
100
100
25
0
11
22
52
55
67
77
61
53

Low Clouds (% Sky Obscured)

4
1
1
1
8
1
20
1
0
1
0
0
0
0
0
0
0
0
1
7
14
21
22
30

Medium Clouds (% Sky Obscured)

0
0
0
4
8
0
0
0
4
15
25
94
98
100
25
0
9
13
29
33
38
41
26
53

High Clouds (% Sky Obscured)

100
93
86
82
58
30
50
30
30
60
60
60
88
100
25
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
7
4
10
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
18
19
18
16
15
14
14
14
13
14
14
14
14
13
13
12
11
11
10
10
10
11
13

Chance of Frost

Temperature (°C)

5
6
5
5
5
4
3
3
3
2
2
2
2
2
2
1
1
0
-0
-1
-1
-1
-0
1

Feels Like (°C)

-2
-1
-2
-1
-2
-1
-3
-3
-3
-3
-4
-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-3
-4
-3

Dew Point (°C)

2
0
-1
-0
-0
-1
-1
-1
-1
-1
-2
-2
-2
-2
-2
-3
-3
-4
-3
-4
-4
-4
-4
-3

Relative Humidity (%)

85
67
65
67
70
72
75
74
77
77
77
77
76
76
76
74
75
77
80
80
78
78
78
76

Pressure (mb)

1008
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1005
1005
1004

Ozone (du)

371
382
383
383
383
378
370
363
360
366
371
374
377
380
379
372
368
368
368
366
364
359
358
358

Friday 2

Waxing Gibbous 100%

14:14

08:53

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Good
17 Good
18 OK
19 Bad
20 Bad
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Bad
09 OK
10 OK

Sun - Rise: 08:12, Set: 15:55, Transit: 12:04. Moon - Rise: 14:14, Set: 08:53. Civil Dark: 16:37 - 07:31. Nautical Dark: 17:21 - 06:46. Astro Dark: 18:03 - 06:04

Total Clouds (% Sky Obscured)

39
33
26
10
45
4
6
7
41
45
7
5
5
7
5
0
3
6
2
0
0
46
40
35

Low Clouds (% Sky Obscured)

32
29
22
5
20
1
3
2
17
15
1
1
1
1
0
0
0
0
0
0
0
5
5
0

Medium Clouds (% Sky Obscured)

39
33
26
0
45
0
0
3
38
45
3
3
0
0
0
0
0
2
2
0
0
2
40
35

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
0
1
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

65
95
57
9
4
5
4
11
24
9
6
3
3
5
5
5
2
0
0
1
2
2
1
2

Precipitation Amount (mm)

0
2.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
17
15
15
15
15
15
16
15
15
16
16
15
15
14
15
14
14
14
14
14
14
14
14

Chance of Frost

Temperature (°C)

3
3
1
1
1
0
-1
-1
-1
-1
-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1

Feels Like (°C)

-4
-4
-4
-5
-4
-7
-6
-7
-7
-7
-8
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-7
-8
-7

Dew Point (°C)

-0
-1
1
0
-1
-3
-4
-5
-3
-3
-4
-5
-5
-5
-5
-6
-6
-6
-6
-6
-7
-7
-6
-6

Relative Humidity (%)

80
75
98
93
86
80
80
77
89
87
77
77
77
75
77
74
72
74
72
71
71
71
70
66

Pressure (mb)

1004
1003
1003
1003
1003
1004
1004
1004
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1007
1007
1008
1008

Ozone (du)

357
362
372
370
363
356
349
342
335
340
347
347
348
353
358
363
371
375
377
378
379
381
381
385

Saturday 3

Full Moon 99%

15:36

09:28

11 Good
12 OK
13 OK
14 Good
15 OK
16 Bad
17 Bad
18 Bad
19 OK
20 OK
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good

Sun - Rise: 08:12, Set: 15:57, Transit: 12:04. Moon - Rise: 15:36, Set: 09:28. Civil Dark: 16:38 - 07:30. Nautical Dark: 17:23 - 06:46. Astro Dark: 18:04 - 06:04

Total Clouds (% Sky Obscured)

3
35
26
2
4
35
40
35
30
35
10
2
3
5
6
7
1
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

0
0
0
0
1
10
10
5
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
35
26
0
3
35
40
35
30
35
2
0
0
0
0
1
1
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
2
3
5
11
32
31
19
7
2
2
2
2
5
4
1
2
2
1
2
3
2
3
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

16
16
17
16
15
14
16
15
16
16
16
17
16
16
15
14
14
14
13
13
13
13
13
13

Chance of Frost

Temperature (°C)

0
1
1
1
1
-0
-1
-1
-1
-1
-2
-2
-2
-2
-2
-2
-3
-3
-3
-2
-2
-2
-2
-1

Feels Like (°C)

-8
-5
-7
-7
-6
-6
-8
-8
-9
-9
-9
-8
-8
-8
-8
-8
-9
-9
-9
-8
-8
-8
-8
-8

Dew Point (°C)

-6
-5
-5
-6
-6
-5
-3
-4
-5
-4
-5
-6
-6
-7
-7
-8
-8
-8
-8
-8
-8
-8
-7
-7

Relative Humidity (%)

65
69
65
60
61
68
86
78
74
81
77
74
72
69
69
67
67
67
67
65
67
65
67
66

Pressure (mb)

1008
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014

Ozone (du)

387
389
392
386
381
376
372
370
374
376
375
378
378
376
371
367
362
364
367
369
369
369
369
374

Sunday 4

Waning Gibbous 96%

17:09

09:51

11 Good
12 OK
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
19 Good
20 Good
21 Good
22 OK
23 OK
00 OK
01 OK
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good

Sun - Rise: 08:11, Set: 15:58, Transit: 12:05. Moon - Rise: 17:09, Set: 09:51. Civil Dark: 16:39 - 07:30. Nautical Dark: 17:24 - 06:46. Astro Dark: 18:05 - 06:04

Total Clouds (% Sky Obscured)

0
29
54
80
67
48
30
25
17
5
15
28
32
26
22
8
9
6
3
2
1
0
2
4

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
14
27
45
39
25
12
21
17
5
15
28
32
26
21
4
3
3
2
2
1
0
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
5
10
5
14
18
17
12
6
0
0
0
0
0
0
0
2
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
2
2
0
1
0
0
0
0
0
1
2
2
4
4
1
1
1
1
1
1
0
1
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

13
13
12
11
11
10
9
8
8
8
9
9
10
11
10
10
10
10
9
9
9
9
8
8

Chance of Frost

Temperature (°C)

-1
1
1
1
1
-0
-1
-2
-2
-2
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-3
-2

Feels Like (°C)

-8
-7
-4
-4
-4
-4
-4
-4
-6
-6
-6
-6
-6
-6
-7
-6
-6
-6
-6
-5
-5
-5
-5
-5

Dew Point (°C)

-7
-6
-6
-5
-5
-5
-5
-5
-6
-6
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-8
-8
-9
-8

Relative Humidity (%)

63
62
64
65
67
70
74
76
75
74
71
71
71
69
69
69
68
69
69
71
68
67
66
63

Pressure (mb)

1014
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019

Ozone (du)

379
384
383
381
380
381
381
381
381
382
382
383
383
383
380
378
375
371
368
364
361
358
354
356

Monday 5

Waning Gibbous 91%

18:41

10:07

11 Good
12 Good
13 OK
14 OK
15 OK
16 OK
17 Bad
18 Bad
19 Bad
20 Bad
21 OK
22 OK
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good

Sun - Rise: 08:11, Set: 15:59, Transit: 12:05. Moon - Rise: 18:41, Set: 10:07. Civil Dark: 16:40 - 07:30. Nautical Dark: 17:25 - 06:45. Astro Dark: 18:07 - 06:04

Total Clouds (% Sky Obscured)

5
13
22
30
36
39
49
55
57
59
42
22
3
2
2
2
3
5
4

Low Clouds (% Sky Obscured)

0
0
0
0
9
18
27
31
34
37
25
12
0
1
1
1
1
2
2

Medium Clouds (% Sky Obscured)

2
13
22
30
36
39
49
55
57
59
42
22
1
1
0
0
1
1
2

High Clouds (% Sky Obscured)

5
13
22
30
36
39
40
36
35
30
20
13
0
0
1
1
1
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
1
0
1
1
0
1
1
1
2
2
1
1
1
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
8
8
8
7
7
7
7
7
7
6
6
6
6
7
6
6

Chance of Frost

Temperature (°C)

-1
-0
-0
-0
-0
-1
-1
-2
-2
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3

Feels Like (°C)

-5
-5
-3
-2
-2
-3
-3
-4
-6
-6
-6
-6
-6
-6
-5
-6
-6
-6
-6

Dew Point (°C)

-9
-8
-8
-7
-6
-6
-7
-7
-7
-7
-6
-6
-6
-7
-6
-7
-6
-6
-6

Relative Humidity (%)

57
54
56
61
65
66
67
67
69
72
75
75
76
75
78
78
79
79
81

Pressure (mb)

1019
1019
1019
1019
1019
1020
1020
1020
1021
1021
1022
1022
1023
1023
1023
1024
1024
1024
1025

Ozone (du)

358
361
366
371
376
378
380
382
386
389
392
389
387
384
383
381
380
375
370

Forecast for Boston, Lincolnshire, United Kingdom (52.98,-0.02)

Generated: 30/12/25 11:29:20. Forecast: 30/12/25 to 05/01/26. Timezone: UTC+0.00